Messages in this thread | | | Date | Thu, 28 Apr 2022 17:35:56 +0100 | Subject | Re: [PATCH v2 0/4] drm/nvdla: Add driver support for NVDLA | From | Jon Hunter <> |
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On 28/04/2022 16:56, Mikko Perttunen wrote: > On 4/28/22 17:10, Thierry Reding wrote: >> On Tue, Apr 26, 2022 at 02:07:57PM +0800, Cai Huoqing wrote: >>> The NVIDIA Deep Learning Accelerator (NVDLA) is an open source IP >>> which is integrated into NVIDIA Jetson AGX Xavier, >>> so add driver support for this accelerator." >> >> Hi, >> >> nice to see this work going on. For subsequent revisions, can you please >> also Cc the Tegra mailing list (linux-tegra@vger.kernel.org) as well as >> the Tegra platform maintainers (that's Jon Hunter and myself). This will >> make sure that more people with an interest in this will see your work. >> Not everyone follows dri-devel, linaro-mm-sig or linux-media. >> >> Thanks, >> Thierry > > From a quick glance it looks like this driver pokes DLA hardware > directly which is not the intended programming model on Tegra hardware > (there are Falcon microcontrollers that offload task scheduling and > synchronization from the CPU). The hardware is also behind the Host1x > bus so a simple platform device is not sufficient. > > Was this driver developed against some platform with OpenDLA hardware > (i.e. not Tegra)? > > If so, we'd need to verify if the hardware matches the hardware in > Tegra194. Also, this driver may not be ideal for Tegra platforms since > we would lack the hardware scheduling and synchronization facilities. It > is likely necessary to have separate drivers for OpenDLA and Tegra's DLA > integration.
I believe that this is derived from the following github project ...
https://github.com/nvdla/sw
Jon
-- nvpublic
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